diff --git a/google/cloud/dialogflow/v2/intent.proto b/google/cloud/dialogflow/v2/intent.proto
index fbed819d9a311..1e75f9baaabc7 100644
--- a/google/cloud/dialogflow/v2/intent.proto
+++ b/google/cloud/dialogflow/v2/intent.proto
@@ -53,6 +53,9 @@ service Intents {
       additional_bindings {
         get: "/v2/{parent=projects/*/agent/environments/*}/intents"
       }
+      additional_bindings {
+        get: "/v2/{parent=projects/*/locations/*/agent/environments/*}/intents"
+      }
     };
     option (google.api.method_signature) = "parent";
     option (google.api.method_signature) = "parent,language_code";
@@ -877,7 +880,15 @@ message Intent {
 // The request message for [Intents.ListIntents][google.cloud.dialogflow.v2.Intents.ListIntents].
 message ListIntentsRequest {
   // Required. The agent to list all intents from.
-  // Format: `projects/<Project ID>/agent`.
+  // Format: `projects/<Project ID>/agent` or `projects/<Project
+  // ID>/locations/<Location ID>/agent`.
+  //
+  // Alternatively, you can specify the environment to list intents for.
+  // Format: `projects/<Project ID>/agent/environments/<Environment ID>`
+  // or `projects/<Project ID>/locations/<Location
+  // ID>/agent/environments/<Environment ID>`.
+  // Note: training phrases of the intents will not be returned for non-draft
+  // environment.
   string parent = 1 [
     (google.api.field_behavior) = REQUIRED,
     (google.api.resource_reference) = {